Bispiperazido phosphorus polyamides

Abstract

Novel polymers, useful as films or filaments, are prepared as by the reaction of a bispiperazide with a reactive derivative of an acid.

What we claim is: 
     
       1. A solid polymer consisting essentially of repeating units of the formula ##STR21## wherein (i) X is absent or represents oxygen or sulphur or ═N--R; (ii) Y represents an aliphatic, cycloaliphatic, or aromatic hydrocarbon group or an N-containing heterocyclic group, or --OR or --NR 2 , or --NR 2  in which the two R groups, together with the nitrogen atom to which they are attached, represent an N-containing heterocyclic ring; or a group of the formula ##STR22##  wherein R, R 1 , R 2 , and R 3  represent hydrogen, or an aliphatic, cycloaliphatic, or aromatic hydrocarbon group or an N-containing heterocyclic group;   (iii) R 4  represents hydrogen or an aliphatic group, a cycloaliphatic group, an N-containing heterocyclic group, an acyl group, a sulfonyl group, or an unsubstituted carbamoyl group; and   (iv) n 1 , n 2 , and n 3  each represent zero or an integer.   
     
     
       2. A polymer as claimed in claim 1 wherein n 1  and n 2  both are zero. 
     
     
       3. A polymer is claimed in claim 1 wherein Y is alkoxy, aryloxy, or dialkylamino. 
     
     
       4. A solid polymer consisting essentially of repeating units of the formula ##STR23## wherein (i) X is oxygen or sulfur or ═N--R and a is 0 or 1; (ii) Y represents an aliphatic, cycloaliphatic, or aromatic hydrocarbon group; or --OR; or --NR 2 , other than dimethylamino; or --NR 2  in which the two R groups, together with the nitrogen atom to which they are attached, represent an N-containing heterocyclic ring; or a group of the formula ##STR24##  wherein R, R 1 , R 2 , and R 3  represent hydrogen or an aliphatic, cycloaliphatic, or aromatic hydrocarbon group;   (iii) R 4  represents hydrogen or an aliphatic group, a cycloaliphatic group, an acyl group, or an unsubstituted carbamoyl group; and   (iv) n 1 , n 2 , and n 3  each represent 0 or an integer.   
     
     
       5. A solid polymer as claimed in claim 4 wherein n 1  and n 2  are zero.   
     
     
       6. A solid polymer as claimed in claim 4 wherein a is 1 and Y represents alkoxy, aryloxy, or dialkylamino. 
     
     
       7. A solid polymer consisting essentially of repeating units of the formula ##STR25## wherein (i) X is oxygen or sulfur; (ii) Y represents an aliphatic, cycloaliphatic, or aromatic hydrocarbon group; or --OR; or --NR 2 , other than dimethylamino; or --NR 2  in which the two R groups, together with the nitrogen atom to which they are attached, represent an N-containing heterocyclic ring; or a group of the formula ##STR26##  wherein R and R 3  represent hydrogen or an aliphatic or cycloaliphatic or aromatic hydrocarbon group;   (iii) R 4  represents hydrogen or an aliphatic group, a cycloaliphatic group, an acyl group, or an unsubstituted carbamoyl group; and   (iv) n 3  represents zero or an integer.   
     
     
       8. A solid polymer consisting essentially of repeating units of the formula: ##STR27## 
     
     
       9. A solid polymer consisting essentially of repeating units of the formula: ##STR28## 
     
     
       10. A solid polymer consisting essentially of repeating units of the formula: ##STR29## 
     
     
       11. A process for the production of a solid polymer as claimed in claim 4 which comprises reacting a bispiperazide of the formula: ##STR30##  with a reactive derivative having the formula: ##STR31##  wherein R 7  and R 8  represent halogen, hydroxy, or alkoxy.   
     
     
       12. A process for the production of a solid polymer as claimed in claim 11 which comprises reacting a bispiperazide of the formula ##STR32##   
     
     
       13. A process for the production of a solid polymer as claimed in claim 11 which comprises reacting a bispiperazide of the formula ##STR33##